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TUTOR Metric System Prefixes A sample is found to contain \( 8.75 \times 10^{-3} \mathrm{~g} \) of salt. Express this quantity in nanograms. ng Submit Show Approach Hide Tutor Steps TUTOR STEP Multiply the quantity in grams by the conversion factor \( 10^{9} \mathrm{ng} / \mathrm{g} \). \( x \) ng Recheck Next) (3 of 3)
Rank the following from smallest to largest atomic radius: \[ \mathrm{Ar}, \mathrm{S}^{2-}, \mathrm{Ca}^{2+}, \mathrm{K}^{+}, \mathrm{Cl}^{-} \] a) \( \mathrm{Ar}<\mathrm{K}^{+}<\mathrm{Ca}^{2+}<\mathrm{S}^{2-}<\mathrm{Cl}^{-} \) b) \( \mathrm{Ca}^{2+}<\mathrm{K}^{+}<\mathrm{Ar}<\mathrm{Cl}^{-}<\mathrm{S}^{2-} \) c) \( \mathrm{Ar}<\mathrm{Cl}^{-}<\mathrm{S}^{2-}<\mathrm{Ca}^{2+}<\mathrm{K}^{+} \) d) \( \mathrm{S}^{2-}<\mathrm{Cl}^{-}<\mathrm{Ar}<\mathrm{K}^{+}<\mathrm{Ca}^{2+} \)
Which one is the right f orbitals? And why each one states different 7 shapes? I’m still understanding and learning this. Please explain throughly
Rolly Sharda
Numerade educator
A perfect cube of aluminum metal was found to weigh 20.00 g . The density of aluminum is 2.70 g mL^-1 What are the dimensions of the cube?
The volume of the nucleus of a carbon atom is about 9.9 *10-39 mL. The molar mass of carbon is 12.00 gmol-1. What is the density of the carbon nucleus? please explain steps.
Jennifer Hudspeth
Elemental carbon is a dense, black, odorless solid. Are these characteristics of elemental carbon physical or chemical properties? physical properties, chemical properties, physical and chemical properties, neither physical nor chemical properties
David Collins
If the number 7483917 is rewritten in scientific notation, what will be the exponent of the power of 10? positive, negative, zero